Brian Thomas Dimarzio, M.D.
Family Medicine Physician · Grand Junction, CO
Brian Thomas Dimarzio, M.D. is a family medicine physician with a practice address in Grand Junction, Colorado, and NPI 1922132075, issued on Mar 14, 2007. Check the license (Colorado 0049050, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Thomas Dimarzio
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0049050 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3150 N 12TH St, Grand Junction, CO 81506
- Phone
- (970) 255-1576
- Enumerated
- Mar 14, 2007
- Record last updated
- Dec 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (970) 254-2398
- Medicare enrollment
- Enrolled (PECOS I20110128000648); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 3150 N 12TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tara Albright, DPTPhysical Therapist1134329444
- Dan Babbel, P.T.Physical Therapist1346276185
- Stephanie Bailey-Baughman, MA, NCC, LPCProfessional Counselor1790235695
- Dena Banta Corona, NPFamily Nurse Practitioner1609226778
- Jenna Berguin, RN, FNP-CFamily Nurse Practitioner1598133928
- Abigail Blackford, LPCProfessional Counselor1588488605
Verify Brian Thomas Dimarzio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 0049050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average family medicine physician in 2024
3,756 Medicare Part D claims for 379 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 103 claims were for opioids.
Most prescribed
- Atorvastatin Calcium188 claims
- Levothyroxine Sodium173 claims
- Amlodipine Besylate131 claims
- Pantoprazole Sodium131 claims
- Gabapentin126 claims
- Omeprazole121 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Intermountain Medical Group Grand Junction, LLCGrand Junction, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Thomas Dimarzio among 3,563 family medicine physician records in Colorado
Brian Thomas Dimarzio, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 42% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2004 · median 2008 among the 2,077 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
135 family medicine physician records list a practice address in Grand Junction
They are 135 of the 3,482 NPPES records with a practice address in Grand Junction, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Grand Junction → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Dirks, MDGrand Junction, CO 815061871576561
- Jill Hilty, MDGrand Junction, CO 815061225011943
- Shannon Keel, M.D.Grand Junction, CO 815061558351940
- Glenn Madrid, MDGrand Junction, CO 815061982687620
- Mark Madsen, MDGrand Junction, CO 815061093798738
- Andrew Mohler, MDGrand Junction, CO 815061790768430
- Philip Mohler, MDGrand Junction, CO 815061437132172
- Michael Pramenko, MDGrand Junction, CO 815061619950201
Common questions
What is Brian Thomas Dimarzio, M.D.'s NPI number?
Brian Thomas Dimarzio, M.D.'s National Provider Identifier (NPI) is 1922132075, issued on Mar 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brian Thomas Dimarzio, M.D. located?
The NPPES record lists a practice address at 3150 N 12TH St, Grand Junction, CO, 81506. Phone: (970) 255-1576. Providers update this record themselves, so call before visiting.
How can I verify Brian Thomas Dimarzio, M.D.'s license?
NPPES lists Colorado license number 0049050, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Thomas Dimarzio, M.D. prescribe under Medicare Part D?
In 2024, Brian Thomas Dimarzio, M.D. had 3,756 Medicare Part D claims for 379 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.